When the coronavirus started to spread within the U.S., it ignited a mass transition to remote work. Employers are now beginning a new transition, this time spurred by vaccines and other safety measures, as many dive into hybrid work arrangements.

The setup will look different for every organization. One employer may allow some employees to work remotely all the time, while other personnel are in the office every day. Another business may ask one team to come in on Mondays and Wednesdays and another to make the commute on Tuesdays and Thursdays. Other organizations may take a more relaxed approach, asking workers to show up a few times per month.

One thing will be true about hybrid work no matter how it's implemented: It's going to take coordination, and lots of it, sources previously told HR Dive. Hybrid work may be the natural follow up to a year of widespread remote work, but that doesn't guarantee an easy transition. And because it affects several spheres of the work world, the transition is likely to be felt by many.

Below, HR Dive has gathered six stories that forecast what the transition to hybrid work will look like and what challenges it may pose HR professionals.